Solid‐state thermal polymerization of 2,4‐hexadiyne‐1,6‐diol

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Abstract
The solid‐state thermal polymerization of 2,4‐hexadiyne‐1, 6‐diol has been studied by a variety of methods. Pure monomer heated under vacuum or in an inert gas atmosphere is found to polymerize readily, unlike material heated in air. X‐ray diffraction reveals that samples anneal during polymerization. Initially, a long chain polymer is formed, but above 20% conversion a less perfect product is obtained. Measurements suggest a complex molecular rearrangement during the nonideal phase of polymerization. Possible models for this process are discussed.